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US 5,399,782 AGranted
Benzoyl-substituted phosphabicycloalkanes and phosphabicycloalkanesulfides as photoinitiators
AssigneeCiba-Geigy Corporation
InventorsDavid G. Leppard, Ljubomir Misev, Gebhard Hug
Life of this patent
Estimating the term…
Abstract
Compounds of formula I ##STR1## wherein n is 0 or 1, p is a number from 1 to 8, q is 2 or 3, and R.sub.1 is unsubstituted phenyl or phenyl which is substituted by one to three halogen, C.sub.1 -C.sub.8 alkyl, C.sub.1 -C.sub.8 alkoxy, C.sub.2 -C.sub.8 alkoxyalkyl or/and C.sub.1 -C.sub.4 alkylthio, are suitable for use as initiators for photopolymerising compounds containing ethylenically unsaturated double bonds.
Claims7
A compound of formula I ##STR6## wherein n is 1,
- p is a number from 1 to 8,
- q is 2 or 3, and
- R.sub.1 is unsubstituted phenyl or phenyl which is substituted by one to three halogen, C.sub.1 -C.sub.8 alkyl, C.sub.1 -C.sub.8 alkoxy, C-.sub.2 -C.sub.8 alkoxyalkyl or C.sub.1 -C.sub.4 alkylthio or mixture thereof.
A compound according to 1, wherein p is 1 to 4.
Dependencies are inferred from the claim text.